<%--
  Created by IntelliJ IDEA.
  User: Administrator
  Date: 2022/4/15
  Time: 15:58
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>

<html>
<head>
    <title>el表达式</title>
</head>
<body>
<%--1. el
        表达式语言
        作用: 用于在jsp页面上获取数据,从域中
        语法:{表达式}
--%>
<%request.setAttribute("message","什么什么啊");%>
<%--jsp语法--%>
<%String str =(String) request.getAttribute("message");
out.write(str);
%>
<%--el表达式写法--%>
${message}

</body>
</html>
